Global Patent Index - EP 3349534 A4

EP 3349534 A4 20181114 - TERMINAL ACCESS METHOD AND APPARATUS

Title (en)

TERMINAL ACCESS METHOD AND APPARATUS

Title (de)

ENDGERÄTEZUGANGSVERFAHREN UND -VORRICHTUNG

Title (fr)

PROCÉDÉ ET APPAREIL D'ACCÈS PAR UN TERMINAL

Publication

EP 3349534 A4 20181114 (EN)

Application

EP 16850265 A 20160912

Priority

  • CN 201510642454 A 20150930
  • CN 2016098759 W 20160912

Abstract (en)

[origin: EP3349534A1] The present invention discloses a terminal access method and an apparatus, to resolve a problem in an existing SCMA multi-terminal access mechanism that a conflict causes system performance degradation and may cause system retransmission. The method is as follows: determining, by a terminal, to enter a contention-based access phase; and determining, by the terminal during each transmission of binary data, a first signature according to a random number seed and a signature matrix, and mapping, according to the first signature, the binary data to a multi-dimensional symbol for transmission, where first signatures used during different transmissions of binary data are different.

IPC 8 full level

H04W 74/08 (2009.01); H04L 27/36 (2006.01); H04L 27/00 (2006.01); H04L 27/34 (2006.01)

CPC (source: CN EP US)

H04L 27/36 (2013.01 - EP US); H04W 48/18 (2013.01 - CN); H04W 74/08 (2013.01 - US); H04W 74/0833 (2013.01 - CN); H04L 9/0869 (2013.01 - US); H04L 27/0008 (2013.01 - EP US); H04L 27/34 (2013.01 - EP US); H04L 67/146 (2013.01 - US)

Citation (search report)

  • [Y] WO 2005109653 A1 20051117 - AGERE SYSTEMS INC [US]
  • [Y] WO 2014135126 A1 20140912 - HUAWEI TECH CO LTD [CN]
  • [Y] TAHERZADEH MAHMOUD ET AL: "SCMA Codebook Design", 2014 IEEE 80TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2014-FALL), IEEE, 14 September 2014 (2014-09-14), pages 1 - 5, XP032694934, DOI: 10.1109/VTCFALL.2014.6966170
  • See references of WO 2017054641A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3349534 A1 20180718; EP 3349534 A4 20181114; EP 3349534 B1 20201111; CN 106559859 A 20170405; CN 106559859 B 20210129; US 10716140 B2 20200714; US 2018227951 A1 20180809; WO 2017054641 A1 20170406

DOCDB simple family (application)

EP 16850265 A 20160912; CN 201510642454 A 20150930; CN 2016098759 W 20160912; US 201815940996 A 20180330